Answer:
0.2404
Explanation:
The genes R/r and E/e are linked and there is 4% recombination between them.
<u>The possible genotypes and phenotypes are:</u>
- RR or Rr: Rh+ blood type
- rr: Rh- blood type
- EE or Ee: elliptocytosis
- ee: normal red blood cells
Tom and Terri each have elliptocytosis (they are E_), and each is Rh+ (they are R_).
Tom's mother has elliptocytosis (E_) and is Rh- (rr), so she has the genotype Er/_r. His father is healthy (ee) and has Rh+ (R_), so he has the genotype eR/e_. Tom must have inherited his E allele from his mother and his R allele from his father, so he has the genotype eR/Er.
Terri's father is Rh+ (R_) and has elliptocytosis (E_), while Terri's mother is Rh- (rr) and is healthy (ee) with the genotype er/er. Terry could only receive the chromosome <em>er </em>from her mother, and because she is heterozygous for both genes the dominant alleles were both received from her father. Terri's genotype is ER/er.
The frequency of recombination is 4%, so 4% of the produced gametes will be recombinant. There are two possible recombinant gametes, so each will appear 2% of the times (a frequency of 0.02).
<u />
<u>Tom will produce the following gametes:</u>
- eR, parental (0.48)
- Er, parental (0.48)
- er, recombinant (0.02)
- ER (recombinant (0.02)
<u>Terri will produce the following gametes:</u>
- ER, parental (0.48)
- er, parental (0.48)
- Er, recombinant (0.02)
- eR, recombinant (0.02)
A child Rh- with elliptocytosis has the genotype rrE_. This can happen from the independent combination of the following gametes from Tom and Terri respectively:
- Er (0.48) × er (0.48) = 0.2304 Er/er
- Er (0.48) × Er (0.02) = 0.0096 Er/Er
- er (0.02) × Er (0.02) = 0.0004 er/Er
And the total probability of having a rrE_ child will be 0.2304 + 0.0096 + 0.0004 = 0.2404
Answer:
the answer for this question is seed
Explanation:
Answer:
a) The problem being studies is whether coffee consumption has any effect on heart health or not.
A scientific research always begins with an observation followed by a question which needs to be answered by the scientific method of research. In the following scenario, the problem that was observed was whether coffee consumption affected the health of the heart or not.
b) The hypothesis can be 'If the consumption of coffee is stopped, then hear health can be maintained.'
In the scientific method of research, a hypothesis can be described as a tentative statement which can either be proved as right or wrong. If a hypothesis comes out to be wrong, then another hypothesis can be generated.
c) The experimental variable is the amount of coffee being given to the 191 participants.
The experimental variable is the variable which is under study in a scientific experiment. It might contain of a dependent and independent variable.
d) Controls is that the all heave drinkers of coffee were chosen for the experiment. All were non- smokers.
A control group can be described as a group in the scientific experiment in which no changes are made. The results of the changes which occurred in the experimental group are compared with the control group.
e) The blood levels of cholesterol and homocysteine are being measured to test the hypothesis.
In the scientific method of research, a hypothesis is tested through experiments. The results of these experiments conclude whether the hypothesis is true of false. Based on the experiment, results are generated and conclusions are drawn.
Answer:
The coral reef now has more protection against deposition
The coastline now has less protection against erosion
*can you make me brainliest please?!
Answer:
An ecological community in which populations of plants or animals remain stable and exist in balance with each other and their environment.
Hope this helps! Good luck on your test! :)
